17091...71789 (48-digits)

This number is a prime.

17091721 1723173317 4117471753 1759177717 8317871789

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The ordered-concatenated prime years of the 18th century is prime. [Gallardo]

Submitted: 2004-01-30 16:26:56; Last Modified: 2008-06-28 17:56:51.